Rust Brown #8B3103
Rust Brown is a dark, moderately saturated brown with hex code #8B3103 and RGB rgb(139, 49, 3).
Aa
White text reads best on this color (8.27:1).
About this color
#8B3103 is a dark, moderately saturated brown. In OKLCH its lightness is 44%, its chroma 0.132 and its hue 41°. Its hue sits on the warm side of the wheel. It is the named color Rust Brown. White text reads best on it, at 8.27:1.
| Hue family | Browns |
| Lightness | dark (44%) |
| Chroma | moderately saturated (0.132) |
| Temperature | warm |
| Nearest name | Rust Brown |
| Black text | 2.53:1 |
| White text | 8.27:1 |
Colors that go with Rust Brown
Matches found by rotating Rust Brown around the OKLCH hue wheel, each labelled with the closest name in our list.
Complementary
The opposite hue (180°).
Analogous
Neighbouring hues, 30° either side.
Triadic
Three hues spaced 120° apart.
Color palettes with Rust Brown
Curated color palettes that contain a color within ΔE 0.06 (OKLab) of Rust Brown, closest first.
Similar named colors
The eight named colors closest to Rust Brown, with their ΔE distance.
- Red Brown #8B2E16 ΔE 0.014
- Brown Red #922B05 ΔE 0.017
- Brick Red #8F1402 ΔE 0.042
- Saddle Brown #8B4513 ΔE 0.043
- Burnt Red #9F2305 ΔE 0.043
- Auburn #9B2226 ΔE 0.051
- Russet #A13905 ΔE 0.051
- Brick #A03623 ΔE 0.051
More about Rust Brown
How to make Rust Brown
A starting recipe from common paint colors, found with a spectral paint model (the color mixer’s paint mode). Real pigments vary, so mix a small test batch and adjust.
- 2 parts brown
- 1 part red
Recipe result: #854028, a difference of ΔE 0.035 from Rust Brown. That is close; add a little more of one paint to match.
Codes for Rust Brown in every format
| HEX | #8B3103 |
| RGB | rgb(139, 49, 3) |
| HSL | hsl(20, 96%, 28%) |
| OKLCH | oklch(43.9% 0.132 41.3) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #8B3103 | 8.27:1 | AAA | Lc -92.4 | Preferred for body text |
| Black text on #8B3103 | 2.53:1 | Fails | Lc 16.3 | Dividers and decoration only |
| #8B3103 text on white | 8.27:1 | AAA | Lc 87.7 | Fine for body text |
| #8B3103 text on black | 2.53:1 | Fails | Lc -14.5 | Not readable |
Shades and tints of Rust Brown
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 800.
-
Step 50
50
#FCF3F0
oklch(97% 0.011 39.4)
-
Step 100
100
#F8E5DF
oklch(93.5% 0.022 38.3)
-
Step 200
200
#F3D0C4
oklch(88.4% 0.043 39.8)
-
Step 300
300
#EDB19A
oklch(81% 0.077 41.9)
-
Step 400
400
#E18562
oklch(70.8% 0.124 41.4)
-
Step 500
500
#D66233
oklch(63.1% 0.158 41.2)
-
Step 600
600
#C14500
oklch(55.6% 0.171 41.1)
-
Step 700
700
#A33900
oklch(49.1% 0.151 41.1)
-
Step 800
800 (this color)
#8B3103
oklch(43.9% 0.132 41.3)
-
Step 900
900
#6D2A0D
oklch(37.7% 0.103 41.2)
-
Step 950
950
#40190A
oklch(26.9% 0.066 40.6)
Rust Brown with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #4C4200 | 0.128 |
| Deuteranopia (no green cones) | #625600 | 0.116 |
| Tritanopia (no blue cones) | #9A172A | 0.062 |
| Achromatopsia (no color) | #4E4E4E | 0.133 |
Use Rust Brown in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.